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Message-ID: <MWHPR12MB1694F4408CB278867798EF90F7F80@MWHPR12MB1694.namprd12.prod.outlook.com>
Date: Wed, 7 Sep 2016 14:58:01 +0000
From: "Deucher, Alexander" <Alexander.Deucher@....com>
To: 'Masahiro Yamada' <yamada.masahiro@...ionext.com>,
David Airlie <airlied@...ux.ie>,
"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>
CC: Gustavo Padovan <gustavo.padovan@...labora.co.uk>,
Yakir Yang <ykk@...k-chips.com>,
"Huang, Ray" <Ray.Huang@....com>, "Liu, Monk" <Monk.Liu@....com>,
"Zhou, David(ChunMing)" <David1.Zhou@....com>,
"Daniel Vetter" <daniel.vetter@...el.com>,
Heiko Stuebner <heiko@...ech.de>,
"Huang, JinHuiEric" <JinHuiEric.Huang@....com>,
"Cui, Flora" <Flora.Cui@....com>, Inki Dae <inki.dae@...sung.com>,
Krzysztof Kozlowski <k.kozlowski@...sung.com>,
Dave Airlie <airlied@...hat.com>,
Jani Nikula <jani.nikula@...ux.intel.com>,
"intel-gfx@...ts.freedesktop.org" <intel-gfx@...ts.freedesktop.org>,
Frediano Ziglio <fziglio@...hat.com>,
"Li, Samuel" <Samuel.Li@....com>,
"Koenig, Christian" <Christian.Koenig@....com>,
Tomasz Figa <tomasz.figa@...omium.com>,
Sumit Semwal <sumit.semwal@...aro.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"StDenis, Tom" <Tom.StDenis@....com>,
"Dan Carpenter" <dan.carpenter@...cle.com>
Subject: RE: [PATCH] drm: squash lines for simple wrapper functions
> -----Original Message-----
> From: Masahiro Yamada [mailto:yamada.masahiro@...ionext.com]
> Sent: Tuesday, September 06, 2016 7:04 PM
> To: David Airlie; dri-devel@...ts.freedesktop.org
> Cc: Masahiro Yamada; Gustavo Padovan; Yakir Yang; Huang, Ray; Deucher,
> Alexander; Liu, Monk; Zhou, David(ChunMing); Daniel Vetter; Heiko
> Stuebner; Huang, JinHuiEric; Cui, Flora; Inki Dae; Krzysztof Kozlowski; Dave
> Airlie; Jani Nikula; intel-gfx@...ts.freedesktop.org; Frediano Ziglio; Li, Samuel;
> Koenig, Christian; Tomasz Figa; Sumit Semwal; linux-kernel@...r.kernel.org;
> StDenis, Tom; Dan Carpenter
> Subject: [PATCH] drm: squash lines for simple wrapper functions
>
> Remove unneeded variables and assignments.
>
> Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
Please split these up per driver.
Alex
> ---
>
> drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 6 +-----
> drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c | 6 +-----
> drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c | 6 +-----
> drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c | 20 ++++----------------
> drivers/gpu/drm/drm_dp_mst_topology.c | 7 ++-----
> drivers/gpu/drm/i915/i915_drv.c | 8 +-------
> drivers/gpu/drm/qxl/qxl_draw.c | 7 ++-----
> drivers/gpu/drm/qxl/qxl_release.c | 7 ++-----
> drivers/gpu/drm/radeon/cik.c | 6 +-----
> drivers/gpu/drm/radeon/r100.c | 6 +-----
> drivers/gpu/drm/radeon/r600.c | 6 +-----
> 11 files changed, 17 insertions(+), 68 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> index b818461..0d5307a 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> @@ -5854,11 +5854,7 @@ static int gfx_v8_0_set_clockgating_state(void
> *handle,
>
> static u32 gfx_v8_0_ring_get_rptr_gfx(struct amdgpu_ring *ring)
> {
> - u32 rptr;
> -
> - rptr = ring->adev->wb.wb[ring->rptr_offs];
> -
> - return rptr;
> + return ring->adev->wb.wb[ring->rptr_offs];
> }
>
> static u32 gfx_v8_0_ring_get_wptr_gfx(struct amdgpu_ring *ring)
> diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
> b/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
> index a64715d..b165c78 100644
> --- a/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
> +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
> @@ -190,12 +190,8 @@ out:
> */
> static uint32_t sdma_v2_4_ring_get_rptr(struct amdgpu_ring *ring)
> {
> - u32 rptr;
> -
> /* XXX check if swapping is necessary on BE */
> - rptr = ring->adev->wb.wb[ring->rptr_offs] >> 2;
> -
> - return rptr;
> + return ring->adev->wb.wb[ring->rptr_offs] >> 2;
> }
>
> /**
> diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
> b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
> index 653ce5e..cf253b9 100644
> --- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
> @@ -335,12 +335,8 @@ out:
> */
> static uint32_t sdma_v3_0_ring_get_rptr(struct amdgpu_ring *ring)
> {
> - u32 rptr;
> -
> /* XXX check if swapping is necessary on BE */
> - rptr = ring->adev->wb.wb[ring->rptr_offs] >> 2;
> -
> - return rptr;
> + return ring->adev->wb.wb[ring->rptr_offs] >> 2;
> }
>
> /**
> diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
> b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
> index 48030f0..d37d112 100644
> --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
> +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
> @@ -1073,34 +1073,22 @@ void analogix_dp_set_lane3_link_training(struct
> analogix_dp_device *dp,
>
> u32 analogix_dp_get_lane0_link_training(struct analogix_dp_device *dp)
> {
> - u32 reg;
> -
> - reg = readl(dp->reg_base +
> ANALOGIX_DP_LN0_LINK_TRAINING_CTL);
> - return reg;
> + return readl(dp->reg_base +
> ANALOGIX_DP_LN0_LINK_TRAINING_CTL);
> }
>
> u32 analogix_dp_get_lane1_link_training(struct analogix_dp_device *dp)
> {
> - u32 reg;
> -
> - reg = readl(dp->reg_base +
> ANALOGIX_DP_LN1_LINK_TRAINING_CTL);
> - return reg;
> + return readl(dp->reg_base +
> ANALOGIX_DP_LN1_LINK_TRAINING_CTL);
> }
>
> u32 analogix_dp_get_lane2_link_training(struct analogix_dp_device *dp)
> {
> - u32 reg;
> -
> - reg = readl(dp->reg_base +
> ANALOGIX_DP_LN2_LINK_TRAINING_CTL);
> - return reg;
> + return readl(dp->reg_base +
> ANALOGIX_DP_LN2_LINK_TRAINING_CTL);
> }
>
> u32 analogix_dp_get_lane3_link_training(struct analogix_dp_device *dp)
> {
> - u32 reg;
> -
> - reg = readl(dp->reg_base +
> ANALOGIX_DP_LN3_LINK_TRAINING_CTL);
> - return reg;
> + return readl(dp->reg_base +
> ANALOGIX_DP_LN3_LINK_TRAINING_CTL);
> }
>
> void analogix_dp_reset_macro(struct analogix_dp_device *dp)
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c
> b/drivers/gpu/drm/drm_dp_mst_topology.c
> index 04e4571..302bdcb 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -737,16 +737,13 @@ static void drm_dp_mst_put_payload_id(struct
> drm_dp_mst_topology_mgr *mgr,
> static bool check_txmsg_state(struct drm_dp_mst_topology_mgr *mgr,
> struct drm_dp_sideband_msg_tx *txmsg)
> {
> - bool ret;
> -
> /*
> * All updates to txmsg->state are protected by mgr->qlock, and the
> two
> * cases we check here are terminal states. For those the barriers
> * provided by the wake_up/wait_event pair are enough.
> */
> - ret = (txmsg->state == DRM_DP_SIDEBAND_TX_RX ||
> - txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT);
> - return ret;
> + return txmsg->state == DRM_DP_SIDEBAND_TX_RX ||
> + txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT;
> }
>
> static int drm_dp_mst_wait_tx_reply(struct drm_dp_mst_branch *mstb,
> diff --git a/drivers/gpu/drm/i915/i915_drv.c
> b/drivers/gpu/drm/i915/i915_drv.c
> index 95ddd56..59d029d 100644
> --- a/drivers/gpu/drm/i915/i915_drv.c
> +++ b/drivers/gpu/drm/i915/i915_drv.c
> @@ -1361,13 +1361,7 @@ void i915_driver_unload(struct drm_device *dev)
>
> static int i915_driver_open(struct drm_device *dev, struct drm_file *file)
> {
> - int ret;
> -
> - ret = i915_gem_open(dev, file);
> - if (ret)
> - return ret;
> -
> - return 0;
> + return i915_gem_open(dev, file);
> }
>
> /**
> diff --git a/drivers/gpu/drm/qxl/qxl_draw.c
> b/drivers/gpu/drm/qxl/qxl_draw.c
> index ffe8853..9b728ed 100644
> --- a/drivers/gpu/drm/qxl/qxl_draw.c
> +++ b/drivers/gpu/drm/qxl/qxl_draw.c
> @@ -57,11 +57,8 @@ static struct qxl_rect *drawable_set_clipping(struct
> qxl_device *qdev,
> static int
> alloc_drawable(struct qxl_device *qdev, struct qxl_release **release)
> {
> - int ret;
> - ret = qxl_alloc_release_reserved(qdev, sizeof(struct qxl_drawable),
> - QXL_RELEASE_DRAWABLE, release,
> - NULL);
> - return ret;
> + return qxl_alloc_release_reserved(qdev, sizeof(struct
> qxl_drawable),
> + QXL_RELEASE_DRAWABLE, release,
> NULL);
> }
>
> static void
> diff --git a/drivers/gpu/drm/qxl/qxl_release.c
> b/drivers/gpu/drm/qxl/qxl_release.c
> index f599cd0..cd83f05 100644
> --- a/drivers/gpu/drm/qxl/qxl_release.c
> +++ b/drivers/gpu/drm/qxl/qxl_release.c
> @@ -203,12 +203,9 @@ qxl_release_free(struct qxl_device *qdev,
> static int qxl_release_bo_alloc(struct qxl_device *qdev,
> struct qxl_bo **bo)
> {
> - int ret;
> /* pin releases bo's they are too messy to evict */
> - ret = qxl_bo_create(qdev, PAGE_SIZE, false, true,
> - QXL_GEM_DOMAIN_VRAM, NULL,
> - bo);
> - return ret;
> + return qxl_bo_create(qdev, PAGE_SIZE, false, true,
> + QXL_GEM_DOMAIN_VRAM, NULL, bo);
> }
>
> int qxl_release_list_add(struct qxl_release *release, struct qxl_bo *bo)
> diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
> index 0c1b9ff..4da1140 100644
> --- a/drivers/gpu/drm/radeon/cik.c
> +++ b/drivers/gpu/drm/radeon/cik.c
> @@ -4201,11 +4201,7 @@ u32 cik_gfx_get_rptr(struct radeon_device *rdev,
> u32 cik_gfx_get_wptr(struct radeon_device *rdev,
> struct radeon_ring *ring)
> {
> - u32 wptr;
> -
> - wptr = RREG32(CP_RB0_WPTR);
> -
> - return wptr;
> + return RREG32(CP_RB0_WPTR);
> }
>
> void cik_gfx_set_wptr(struct radeon_device *rdev,
> diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
> index f25994b..f5e84f4 100644
> --- a/drivers/gpu/drm/radeon/r100.c
> +++ b/drivers/gpu/drm/radeon/r100.c
> @@ -1071,11 +1071,7 @@ u32 r100_gfx_get_rptr(struct radeon_device
> *rdev,
> u32 r100_gfx_get_wptr(struct radeon_device *rdev,
> struct radeon_ring *ring)
> {
> - u32 wptr;
> -
> - wptr = RREG32(RADEON_CP_RB_WPTR);
> -
> - return wptr;
> + return RREG32(RADEON_CP_RB_WPTR);
> }
>
> void r100_gfx_set_wptr(struct radeon_device *rdev,
> diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
> index 9247e7d..f034687 100644
> --- a/drivers/gpu/drm/radeon/r600.c
> +++ b/drivers/gpu/drm/radeon/r600.c
> @@ -2631,11 +2631,7 @@ u32 r600_gfx_get_rptr(struct radeon_device
> *rdev,
> u32 r600_gfx_get_wptr(struct radeon_device *rdev,
> struct radeon_ring *ring)
> {
> - u32 wptr;
> -
> - wptr = RREG32(R600_CP_RB_WPTR);
> -
> - return wptr;
> + return RREG32(R600_CP_RB_WPTR);
> }
>
> void r600_gfx_set_wptr(struct radeon_device *rdev,
> --
> 1.9.1
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